So, one day I turned on my machine to the blue screen of "the boot device is unavailable." Turned it off, turned it back on, booted fine. Thought this was some strange anomaly. A few days later it did it again. Same results. Opened it up, did some cleaning, generally poked around. Made sure there was nothing on the C drive I hadn't backed up. This got progressively and slowly worse. I'm thinking that for some reason the drive is just having a hard time spinning up to speed as fast as the computer is ready to see what drives there are to work with, but once it has spun a bit turning the machine off and back on it spins right up. I'm also thinking that that is a totally made from spun sugar theory that I have no way to test as valid, or even support with a stray fact. This goes on for months. It got to where it required a false start pretty much every day. Once in a while it would take two false starts. I was pricing new drives, contemplating the irritation of a system reinstall...all that stuff. I was ready for it to break down definitively and require replacement. Then one day a couple weeks ago I turned on the machine and it booted right up. Done it every day since. It's not like I plan to relax on maintaining backups for anything that is on that drive or anything, but I'm now in no hurry to get a replacement drive. Not even a question, really. Just weird. Any thoughts?